Charged with electricity or supplied with electrical power. It can also mean excited, thrilled, or energized by something.
From Greek 'elektron' (amber), which ancient Greeks discovered could attract objects when rubbed, plus the suffix '-fy' meaning 'to make'. The metaphorical sense of excitement developed from the dramatic effects of electrical energy.
The word 'electrified' connects ancient amber and modern power grids - Greeks rubbing amber 2,500 years ago experienced the same fundamental force that powers our world today. The metaphorical use for excitement is perfect: electrical charge and human enthusiasm both involve energy seeking expression and discharge.
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